Rubber tire.



UNITED STATES' PATENT OFFICE.

JOHN PATRIOK, OF CHICAGO, ILLINOIs.

RUBBER TIRE.

SIEECIFICATION formingflpartof Letters Patent No. 676,368, dated June 1 1, 1901. Application'filed May 7, 1900. Serial No. 15,711. (No model.)

To all whom it may concern:

Be it known that I, JOHN PATRIOK, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invnted a certain new and useful Improvement in Rubber Tires, of which the following is a specification.

My nvention relates to rubber tires for vehicles and the like, and has for its object to provide a new and improved tire of this description.

My nvention is illustrated in the accompanying drawings, wherein v Figure 1 is a view of a Wheel provided with a tire embodying my nvention. Fig. 2 is a section through the tire and rim of the Wheel, showing the Wheel in position between the rails of a street-railway track. Fig. 3 is a view similar to Fig. 2, showing the position of the parts when the Wheel is cramped or turned to turn out of the track. Fig. 4 shows a modified construction.`

Like letters refer to like parts throughout the several figures.

It is customary in cities where street-railways are operated for all kinds of vehicles to run alon g the track with the wheels between the rails. When the Vehicle is provided with the ordinary wheel or with one of the rubbertired wheels now in use, it is difficult to turn out from said track, as the edge of the Wheel slides along the track for a considerable distance before the turn can be made. Vtfhen the ordinary rubber-tired wheel is used, this sliding wears the confining part of the tire and turns the sharp edge in, so as to mutilate the rubber and irreparably injure it. This sliding on the rails also produces other inj urious results, which very matcrially shorten the life of the rubber tire.

One of the objects of my nvention is to provide a tire so constructed that these difficulties and evils will be obviated. I have shown one form of construction for this purpose. In this construction the channel A is made of iron or` Other suitable material and acts as a confining device for the rubber tire B. This channel is preferably provided with a V-shaped groove A', into which the rubber fits, the tire being also held in position by the 5o binding device or wireB'. Extending around the channel on each side is a projecting edge A2, which projects beyond the inner side A3 of the fiange. The contour of the face of the channel between A2 and A3 may be arranged as will best permit the construction of the channel. I prefer to construct the parts with this face substantially straight up to the point A5, where it is curved out, as shown. Between the edges A2 and the tire-groove A' are the thickened portions A4, each provided With a face A6, preferably inclined or beveled. These faces form an engaging surface for the rail when the wheel is cramped and permit the Wheel to readily ride upon the rail, so as to pass over it, thus obviating the sliding therealong and iusuring the immediate and complete removal of the vehicle from between the rails. These thickened portions also protect the rubber and prevent undue injury thereto under conditions where the edge of the liange comes into contact with any obstacle, such as rails, curbstones, or the likef In Fig. 2 I have shown the tire of the wheel in the position it would be in When running along between the rails of the track. s In Fig. 3 I have shown the position of the parts when the Wheel is cramped to turn out of the track. In this case the face Ai3 of the thickened portion A4 engages and rides up onto the rail as soon as the Wheel is cramped, and the rubber is not injured in any way.

I have shown a modified construction in Fig. II, Wherein the channel is provided With two grooves A', there being two binding devices B', as shown. This construction insures the holding of the tire in the channel and is of value under all conditions, but particularly when large heavy tires are used.

I have described a particular construction embodying my nvention; but it is of course evident that the parts maybe varied in some particulars and that the shape may be changed Without departing from the spirit of my nvention. I therefore do not limit myself to the construction shown.

I claim- A Wheel, comprising a metal channel extending therearound and provided with two position, and a thickened projection at each V-shaped grooves placed side by side, a rubside of the channel provided with an inclined ber piece surrounding the Wheel and provided face, substantially as described.

with V-shaped projections which extend into JOHN PATRICK. said grooves, two confining devices separate Witnesscs: from the channel and passing through the DONALD M. CARTER,

substance of the rubber, so as to hold it in HOMER L. KRAFr. 

